I am looking for the "Notch Frequency" knob for my Hallicrafters SX-100.
Its a 1/4" shaft, small black knob with 1" aluminum flange labeled
"50 - 51- 52 - 53 -54". If you have a spare available please advise.
The "notch depth" knob is similar and would work also. Thanks.

--
Bruce N7TWB Phoenix, AZ